Site ID:
BR-Ma2
Site Name:
Manaus - ZF2 K34
Variables:
Air Temperature; Relative humidity; Soil water content (saturation); Solar Radiation
Date Range:
Jan. 1, 2012
-
Dec. 31, 2017
Description:
The K34 tower site (2.609 S, 60.209 W, 130 masl), located within the Tropical Silviculture Experimental Station (EEST, also known as ZF2) research station, in an area of undisturbed tropical forest (Araújo et al. 2002). It features long term measurements using micrometeorological, eddy covariance, and soil instrumentation, among others. This dataset covers January 2012 to December 2017, and includes air temperature (TA, ℃) and air relative humidity (RH, %), measured with thermohygrometers (HC2S3, Campbell Scientific, Logan, UT, USA) deployed above the canopy at the top of the tower (at 51.1 m height), and net radiation (NETRAD, W m-2) using an NR-LITE sensor (Kipp & Zonen, Delft, Netherlands), also at the top of the tower (at 35.0 m above the canopy). The soil moisture data included here is from a soil profile located approximately 12 m from the tower, and covers the period between February 2015 and September 2016. Volumetric soil water content (SWC, m3 m-3) measurements used Water Content Reflectometers (CS655 Campbell Scientific, Logan, UT, USA) at six depths: 10 cm, 20 cm, 30 cm, 40 cm, 60 cm, and 100 cm. Data are included in .csv files, and the text file ZF2-K34_Tower_headers.txt provides descriptions of data file headers.
QA/QC:
Full QA-QC
Methods Description:
Air temperature and relative humidity were measured at the K34 tower every 60 s and recorded as 30 min averages. Net radiation was calculated from downwelling and upwelling longwave and shortwave solar radiation, which were collected with 5-min averages and further averaged to 30 min. Soil water content samples were collected every minute and averaged to 30 min. Data quality control steps include filtering for outliers using conservative thresholds established for the site and removing data for periods of known in which the site was undergoing maintenance or there were malfunctions, most commonly from power-related issues.
Access Level:
Public
Originating Institution(s):
Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) Program; National Institute for Amazon Research (INPA); Lawrence Berkeley National Laboratory (LBNL)
Sponsor Organization(s):
Brazil’s Ministry of Science, Technology, Innovation & Communications (MCTIC)
Contact:
Pastorello, Gilberto - Lawrence Berkeley National Laboratory (gzpastorello@lbl.gov)
Araújo, A.C., Nobre, A.D., Kruijt, B., Elbers, J.A., Dallarosa, R., Stefani, P., von Randow, C., Manzi, A.O., Culf, A.D., Gash, J.H.C., Valentini, R., Kabat, P. (2002). Comparative Measurements Of Carbon Dioxide Fluxes From Two Nearby Towers In A Central Amazonian Rainforest: The Manaus LBA Site. Journal Of Geophysical Research, 107(D20). https://doi.org/10.1029/2001JD000676
